Pina Colada Lake Corporation’s accounting records show the following at year-end December 31, 2017: Purchase Discounts $7,700 Beginning Inventory $31,950 Freight-In 9,840 Ending Inventory 28,980 Freight-Out 10,050 Purchase Returns and Allowances 4,440 Purchases 164,480 Assuming that Pina Colada Lake Corporation uses the periodic system, compute cost of goods purchased and cost of goods sold.